2026 Hyundai Ioniq 9 - Electric Vehicle Guide
The 2026 Hyundai Ioniq 9 is catalogued in the Know Your Ride maintenance database. It is an all-electric vehicle, so it skips the oil changes, spark plugs and exhaust-system service of a combustion Ioniq 9 entirely. It is configured as rear-wheel drive with an automatic (a1).
Routine upkeep centers on tire rotation, DOT 3 brake fluid, Long Life battery/cabin coolant, cabin air filters and brake service rather than engine oil. Know Your Ride lists 16 scheduled maintenance items for this vehicle, the earliest interval falling at 7,500 miles. Documented torque values include lug nut 80 ft-lb.
There is 1 safety recall on record; one covers: Hyundai Motor America (Hyundai) is recalling certain 2025-2026 IONIQ 5 and 2026 IONIQ 9 vehicles. The high voltage battery system may contain an.... Its overall reliability signal is rated "Good" based on aggregated complaint and crash data.
It returns 92 MPGe combined. Estimated annual charging cost runs near $850.
Quick Specs
| Efficiency | 92 MPGe combined |
| Est. annual charging | $850 |
| Tire size | 215/55R17 |
| Coolant | Long Life |
| Open recalls on record | 1 |
| Technical service bulletins | 11 |
Common Trouble Codes
- P0300 - Random/Multiple Cylinder Misfire Detected
- P0420 - Catalyst System Efficiency Below Threshold (Bank 1)
- P0171 - System too Lean (Bank 1)
- P0128 - Insufficient Coolant Temperature for Stable Operation
- P0442 - Evaporative Emission Control System Leak Detected (small leak)
- P0455 - Evaporative Emission Control System Leak Detected (gross leak)
- P0700 - Transmission Control System Malfunction
- P0301 - Cylinder 1 Misfire Detected
- U0100 - Lost Communication With ECM/PCM A
Related Vehicles
Part of the free Know Your Ride vehicle maintenance reference. Figures are sourced from EPA, NHTSA and manufacturer data and are for general reference - always confirm with your owner's manual.